Skeletal Flashcards
One end of a skeletal muscle usually fastens to a relatively ____ , and the other end connects to a
____ on the other side of that joint.
immovable or fixed part at a movable joint
movable part
Functions of Muscular System
Origin
Insertion
Belly
less movable end of the muscle
Origin
more movable end of the muscle
Insertion
part of the muscle between the origin and insertion
Belly
insertion of biceps brachii
Radial tuberosity
belly
biceps brachii
muscles of the head and neck includes those invloded in:
- Facial expression
- Mastication
- Movement of tongue
- Swallowing
- Voice production
- Eye Movements
- Movement of head and neck
Muscles of the head and neck
Orbicularis oculi
Orbicularis oris
Occipitofrontalis
Buccinator
closes the eyes
Orbicularis oculi
closes and protudes the lip
Orbicularis oris
raises eyebrow
occipitofrontalis
Compresses the cheeks inward
Buccinator
Muscles of facial expression
Levator labii superioris
Zygomaticus
Depressor anguli oris
depresses angle of the mouth
Levator labii superioris
Raises corner of mouth ( smiling muscle)
Zygomaticus
depresses corner of the mouth
Depressor anguli oris
Chewing
Masseter
Muscles for masticatiom
Temporalis
Masseter
Pterygoid
Tongue and swallowing muscles
Genioglossus
Hyoglossus
Styloglossus
✔ Hyoid muscles
✔ Soft palate
✔ Pharynx
✔ larynx
depresses the tongue
Genioglossus
elevates the tongue
Styloglossus
muscles for movement of head and neck
Sternocleidomastoid
Trapezius
Scalene
Includes those involved in the process of breathing
Muscles of thorax